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All results from a given calculation for CH2C(CH3)CH3 (1-Propene, 2-methyl-)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-157.167960
Energy at 298.15K-157.175814
Nuclear repulsion energy119.548446
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B3PW91/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3165 3028 9.60      
2 A1 3144 3008 20.58      
3 A1 3042 2910 38.81      
4 A1 1751 1675 14.62      
5 A1 1527 1460 11.38      
6 A1 1465 1401 0.70      
7 A1 1433 1371 0.17      
8 A1 1094 1046 4.55      
9 A1 830 794 0.09      
10 A1 375 359 0.32      
11 A2 3091 2957 0.00      
12 A2 1495 1430 0.00      
13 A2 1031 986 0.00      
14 A2 706 675 0.00      
15 A2 170 163 0.00      
16 B1 3094 2960 48.79      
17 B1 1513 1448 17.79      
18 B1 1116 1068 1.24      
19 B1 917 877 47.67      
20 B1 437 418 6.36      
21 B1 210 201 0.65      
22 B2 3245 3105 20.45      
23 B2 3143 3006 23.69      
24 B2 3036 2904 20.21      
25 B2 1509 1444 4.57      
26 B2 1434 1372 9.29      
27 B2 1315 1258 3.79      
28 B2 994 951 0.08      
29 B2 972 930 0.19      
30 B2 435 416 1.34      

Unscaled Zero Point Vibrational Energy (zpe) 23842.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 22810.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B3PW91/6-31G*
ABC
0.30510 0.27930 0.15414

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.121
C2 0.000 0.000 1.458
H3 0.000 0.925 2.030
H4 0.000 -0.925 2.030
C5 0.000 1.275 -0.678
C6 0.000 -1.275 -0.678
H7 0.000 2.160 -0.034
H8 0.880 1.329 -1.333
H9 -0.880 1.329 -1.333
H10 0.000 -2.160 -0.034
H11 -0.880 -1.329 -1.333
H12 0.880 -1.329 -1.333

Atom - Atom Distances (Å)
  C1 C2 H3 H4 C5 C6 H7 H8 H9 H10 H11 H12
C11.33632.12072.12071.50431.50432.16522.15782.15782.16522.15782.1578
C21.33631.08771.08772.48672.48672.62483.21403.21402.62483.21403.2140
H32.12071.08771.85052.72953.48822.40463.49953.49953.71154.14304.1430
H42.12071.08771.85053.48822.72953.71154.14304.14302.40463.49953.4995
C51.50432.48672.72953.48822.54921.09421.09881.09883.49402.82532.8253
C61.50432.48673.48822.72952.54923.49402.82532.82531.09421.09881.0988
H72.16522.62482.40463.71151.09423.49401.77561.77564.31933.82523.8252
H82.15783.21403.49954.14301.09882.82531.77561.75983.82523.18762.6577
H92.15783.21403.49954.14301.09882.82531.77561.75983.82522.65773.1876
H102.16522.62483.71152.40463.49401.09424.31933.82523.82521.77561.7756
H112.15783.21404.14303.49952.82531.09883.82523.18762.65771.77561.7598
H122.15783.21404.14303.49952.82531.09883.82522.65773.18761.77561.7598

picture of 1-Propene, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H3 121.719 C1 C2 H4 121.719
C1 C5 H7 111.904 C1 C5 H8 111.028
C1 C5 H9 111.028 C1 C6 H10 111.904
C1 C6 H11 111.028 C1 C6 H12 111.028
C2 C1 C5 122.078 C2 C1 C6 122.078
H3 C2 H4 116.562 C5 C1 C6 115.844
H7 C5 H8 108.122 H7 C5 H9 108.122
H8 C5 H9 106.416 H10 C6 H11 108.122
H10 C6 H12 108.122 H11 C6 H12 106.416
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.208     0.431
2 C -0.435     -0.642
3 H 0.154     0.205
4 H 0.154     0.205
5 C -0.567     -0.524
6 C -0.567     -0.524
7 H 0.176     0.140
8 H 0.175     0.142
9 H 0.175     0.142
10 H 0.176     0.140
11 H 0.175     0.142
12 H 0.175     0.142


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.521 0.521
CHELPG        
AIM        
ESP 0.005 0.000 -0.511 0.511


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.591 0.000 0.000
y 0.000 -25.153 0.000
z 0.000 0.000 -25.567
Traceless
 xyz
x -2.231 0.000 0.000
y 0.000 1.426 0.000
z 0.000 0.000 0.805
Polar
3z2-r21.610
x2-y2-2.438
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 90.698
(<r2>)1/2 9.524